Third person charged in Davenport shooting death during robbery

Dmarithe Culbreath

A third person has been charged in the shooting death of a man at his Davenport home.

Dmarithe Culbreath, 21, is charged with conspiracy, robbery and first-degree murder. He’s already serving prison time on an unrelated charge.

He’s accused in the shooting death of Brady Tumlinson, 20, during a September robbery. A woman there also was injured.

Police say Culbreath and four others conspired and committed a robbery and shot both residents. Tumlinson died as a result of several gunshot wounds. A woman was hospitalized, also due to several gunshot wounds, and is still recovering. Cell phone tower information places the defendant and
the other accomplices in the area at the time of the robbery. 

One of them, Nakita Wiseman Jr., has pleaded guilty to burglary and robbery and has agreed to testify against the others. Another of them, Tristin Antonio Joseph Alderman, is awaiting trial.

The two others have not been named.


March 2, 2018

Two people are under arrest for a Davenport murder that happened more than five months ago.

Brady Tumlinson, 20, of Davenport was pronounced dead at the hospital following a shooting at 13th and South Nevada in late September.    

Police say the two suspects tried to rob a home near that intersection and ended up shooting a man and woman inside.

The woman was treated for her injuries. 

Police were able to make an arrest after using data from nearby cell phone towers.


September 22, 2017

One man is dead after a Friday morning shooting in Davenport.

Davenport police responded to a report of two gunshot victims in the 1300 Block of S. Nevada Avenue at 7:34 a.m.

Brady Tumlinson, 20, of Davenport was pronounced dead at the scene.

A second adult was transported to Genesis Medical Center with life threatening injuries.

Anyone with information regarding this incident is encouraged to call the Davenport Police Department at 563-326-6125 or submit an anonymous tip via the mobile app entitled “CityConnect Davenport, IA” or “CrimeReports by Motorola”.


September 22, 2017

Davenport police are investigating a shooting in the 1300 Block of S. Nevada Avenue in Davenport.

One person has been taken to Genesis in unknown condition.

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